Acting couple Joseph and Maria Tura are managing a theatrical troupe when the Nazis invade Poland. Maria is having an affair with Lieutenant Sobinski, who suspects Professor Siletsky is a Nazi spy. With Siletsky in possession of a list of members of the Polish resistance, the Turas' company takes action. Using their skill for impersonation, Joseph and company must confuse the Nazis and stop Siletsky from handing over the list.
Joseph Tura/Prof. Alexander Siletsky
Lt. Stanislav Sobinski
Prof. Alexander Siletsky
Actor Playing Hitler's Adjutant
Anna, Maria's maid
Polonius in Warsaw (uncredited)
Edwin Justis Mayer